add mail.de to domains.csv (#485)

Co-authored-by: cl1pp0 <cl1pp0>

share/domains.csv

@@ -184,6 +184,7 @@ loves.dicksinhisan.us,mail.cock.li,993,mail.cock.li,587
 loves.dicksinmyan.us,mail.cock.li,993,mail.cock.li,587
 lukesmith.xyz,mail.lukesmith.xyz,993,mail.lukesmith.xyz,587
 mail.com,imap.mail.com,993,smtp.mail.com,587
+mail.de,imap.mail.de,993,smtp.mail.de,465
 mail.mcgill.ca,outlook.office365.com,993,smtp.office365.com,587
 mail.polimi.it,outlook.office365.com,993,smtp.office365.com,587
 mail.ru,imap.mail.ru,993,smtp.mail.ru,465